Which of the following is considered an indirect proof that DNA is the genetic material in eukaryotes?

• A. DNA is found only where primary genetic functions occur.
• B. The amount of DNA and the number of sets of chromosomes are closely correlated.
• C. The absorption wavelength of DNA correlated with the wavelengths of UV light that were found to be mutagenic.
• D. All of the above.

Answer: (D)